Cutting device



Sept 2, 94l. H. D. BA'l-l-IERsl-IELL.

CUTTING DEVICE Filed May l5, 1941 zNvENToR, Harold 1D. atershe? Hf o r'n e, y

Patented Sept. 2, 1941 UNITED STATES PATENT OFFICE CUTTINGiDEVICEHarold' D. Battershell, Detroit, Mich.

Application May 13, 1941, Serial No. 393,290

9 Claims.

This invention relates to cutting devices Yand has particular referenceto a device for cutting siding material and the like.

An object of the invention is to provide a device of the characterreferred to, which is lightand readily portable and has a high deg-reeof maneuverability in closely confined spaces.

Another object of the inventionis the provision of a device which can beemployed to cut Celotex and like materials by simply pushing or pullinglthe material through the device.

Another object of the invention is the provision of a device which canbe used to notch out as well as cut materials such as indicated above.

The foregoing objects and other advantages of the invention will becomemore apparent as the description proceeds, reference being made fromtime to time to the accompanying drawing, in which:

Fig. 1 is a front elevation of a device embodying my invention.

Fig. 2 is an enlarged view with parts broken away, and partly insection, illustrating the manner in which the material to be cut isforced through the device.

Fig. 3 is a section taken substantially on the line 3 3 of Fig. 1.

Fig. 4 is a section taken substantially on the line 4-4 of Fig. 1.

Fig. 5 is a section taken substantially on the line 5 5 of Fig. 1.

Referring now more particularly to the drawing it will be understoodthat in the embodiment herein disclosed, my device consists generally ofa special C clamp 1 with which the device may be mounted on a scaffoldboard or the like, a substantially larger bracket 8, and a tubular bodymember 9. The lower end of the body member 9 rests in a suitable socketI 0, formed as an integral part of the C clamp 1, and is held againstdisplacement by a set screw I I. A collar I2, having detents I3, formedon its upper edge, is adjustably mounted on the body 9, and is heldagainst displacement by a set screw I4. The collar I2, is intended toserve as an adjustable support for the bracket 8, the end I5 of which isa hollow cylinder adapted to fit over the body 9. The end I5 is providedwith recesses I6 adapted to engage the detents I3 of the collar I2, sothat the bracket 8 may be swung into several operating positions. Asecond collar I1 is mounted on the body 9 and is secured in place by theset screw I1. Between the collar I1 and the end member I5 is a coilspring I8. This serves to hold the bracket 8 against the collar I2, butpermits the bracket to be moved upwardly, if it is desired to swing thebracket, or if there is an overload on the cutting elements describedhereinafter.

The lower cutting element I9 is a circular knife, which is mounted on aspindle 2i), the latter being carried by a casting 2l. The knife I9 maybe held in position on the spindle 2D by collars 22. Y ,The casting 2|Vis provided with a depression or cup-like formation 23, in which oiledwaste or another lubricating medium for the cutting member I9 may becarried. The casting 2I is provided with a depending portion 24 whichextends into the tubular body member 9. Two slots 25 in the portion 24engage a pin 26 which extends through the body 9 and prevents thecasting from turning normally, but permits it to be raised and lowered.,and permits it to be rotated 90 degrees when in raised position. A camsurface 21 is formed on the edge of the casting 2I and is adapted toengage a corresponding cam surface 28-formed on the turning collar 29,which is mounted for rotation on the end of the body 9. A lug 30 on thecollar 29 engages a pin 29 on the body 9 and serves as a stop for therotation of the collar 29. The collar 29 is provided with suitablehandles 32, whereby the same may be turned. As'the collar 29 is turnedthe engagement of the cam surfaces 21 and 28 causes the casting 2| to beraised or lowered, thereby causing the cutting element I9 to approach orrecede to o-r from the cutting element 33, which in this embodiment is asaw or sharp toothed wheel 34, mounted on the spindle which is carriedon the casting 36, the latter being slidably mounted in the upper end ofthe bracket 8. The casting 36 is provided with detents 31 adapted toengage recesses 38 in the end of the bracket 8 and serve as lockingmeans against the rotation of the casting 36. The casting 36 has a shank39 at the end of which is a pressure knob 40. A coil spring 4I isinterposed between the knob 40 and the end of the bracket 8. The spring4I normally urges the casting 36 and cutting element 33 upwardly, butpermits them to be lowered by compressing the spring.

In using the device the bracket 8 is swung to the position `desired andthe cutting elements are placed in alignment in their desired position.The material 42 to be cut (Fig. 2) is then forced through the device.The upper cutting element 33 4being in the form of a toothed member, can

2. In a device of the character described, the a body member combinationof a bracket, mounted at one end of said bracket, cutting eleupper endof said bracket, a circular cutting member mounted in said bifurcatedmember, and a second circular cutting member mounted on means at thefree end of said body member.

5. The combination defined in claim 4, in which the said second cuttingmember is mounted for rotation on a bifurcated member having a dependingportion which telescopes the tubular body member. Y

t 6. The combination dened in claim 4, in which there are spring meansinterposed between the said bracket and the rst named bifurcated member,and between the said bracket and an ments carried respectively bymembers 'onuthe' other end of said bracket and on saidbody mern- I Vsaidbracket vand the first named bifurcated ber, the said bracket beingarranged to be rotated about the longitudinal axis of said body memjfber.

3. In aV device of the character described, the combination of abracket, 'abody member mounted at one endo said bracket, cuttingelements carried respectively by members on the other end of saidbracketand on said body member, the said cutting elements being circularin formatiomfand pivoted `for rotation in common planes, and in planes'angular to one another.

4, A device of` the ycharacter vdescribed'com-V prising the combinationof `va substantially'cshaped bracket, a-tubular body member extendingthrough thelower end of said bracket, fasteningmeans secured'to saidbody member, a bifurcated fmemberadjustably mounted in the adjustablecollar carried on said tubular body member.

'7; The combination dened in claim 4, in which there are spring meansinterposed between the member, and between the said bracket and anadjustable collar carried on said tubular body member, the saidbifurcated member having a,

cam surface adapted to engagea corresponding cam surface carried onarotatable .collar member mountedat the end of said body member.v

8. The combinaticnqenned in nannay includ'-l ing a collar adjustablyAsecured to said body member, said' collar havingy lmeans 'to rengage'means on said bracket f or locking thefb'rack'et in position. r

ing means on said bracketV and means onsaid bifurcated member' whichco-operate to lock the said parts against rotation. f

f HAROLDl D. BATTERSHELL.

